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Mathematics 16 Online
OpenStudy (anonymous):

Starting from x^2 + y^2 <= 1, how can I find that -1 <=x <= 1?

OpenStudy (perl):

x^2 + y^2 <= 1 is the interior of a circle (including the circumference) and the circle has a domain of of -1 < = x < = 1 , and range -1 < = y < = 1

OpenStudy (perl):

but you can solve for y

OpenStudy (perl):

|dw:1359977304429:dw|

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